Ultrasound transducer for enhancing signal reception in ultrasound equipment
US4427912A · kind A · utility
26Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 13, 1982 |
| Grant date | Jan 24, 1984 |
| Priority date | — |
| Expiry date | May 13, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S310/80
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An ultrasonic transducer assembly having three layers. The front and back layers are made of piezoelectric materials, and are acoustically matched by the intermediate layer. The back layer functions as an ultrasound transmitter, and the front layer functions both as a transmission matching layer and as an ultrasound receiver. During reception, by delaying the signal which is generated by the front layer so that it is in phase with a signal which appears across the back layer and then adding them together, the back layer also functions to enhance the received signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.